Single Run Capacitor, Oval, 4/370 uF

Rheem/Ruud 43-25134-27 – PROTECH 4 MFD 370V Oval Motor Run Capacitor The PROTECH 43-25134-27 is a single-value motor run capacitor rated at 4 microfarads (MFD) and 370 VAC. It is housed in a compact oval aluminum case and used in PSC (permanent split capacitor) motor applications, commonly within blower assemblies in residential HVAC systems. This capacitor is an original equipment replacement component for Rheem, Ruud, and WeatherKing equipment. It includes an internal pressure-sensitive interrupter and is certified under UL 810 with a 5000 AFC rating for safety compliance. Technical Specifications Capacitance: 4 MFD (±6% tolerance) Voltage Rating: 370 VAC Frequency: 50/60 Hz Case Type: Oval aluminum Terminal Style: Dual ¼" male quick-connect terminals Dimensions: Height: 1.69″ Width: 2.16″ Depth: 1.31″ Safety Rating: UL 810 recognized, 5000 AFC Dielectric Fluid: Non-PCB OEM Compatibility: Designed for Rheem/Ruud/WeatherKing models requiring a 4 µF 370V oval capacitor Application Notes Intended for continuous-duty service in HVAC motor circuits requiring a 4 µF capacitor Most commonly installed in air handler blower motors, condenser fan motors, or control boards requiring a small-value run capacitor Compact size allows for use in tight enclosures or equipment with limited mounting clearance Installation Guidelines Installation must be performed with power disconnected and old capacitor properly discharged Always verify capacitance and voltage requirements match original specifications before replacement Secure using original mounting bracket or approved strap For safety and code compliance, installation should be handled by qualified personnel Summary for HVAC Professionals Exact OEM form and electrical specification for Rheem and Ruud systems Aluminum construction with safety interrupter for pressure failure protection Suitable for general-purpose replacement where 4 MFD at 370V is specified Compact oval profile simplifies placement in tight control boxes or panels